Flower Dissection? 3 Twigs Paper? Spring Walk Questions? Horticulture News: Signs of Spring Photos due to me by Thursday 4/12/16 (emailed) Have you turned in the Flower Dissection? 3 Twigs Paper? Spring Walk Questions?

Journal # 10 Pollen Drawings 4-12-16 1. Observe mixed pollen slides. 2. Sketch 4 examples using 4 different petri dish circles. 3. Color and label the type of pollen using pollen key. 4. Make it neat and accurate!!!!

Journal # 10 Reaction Questions Describe 3 differences you noticed in your sketches. Explain why you think pollen grains from various species would be so dissimilar. 3. Which 2 cell types are found within each pollen grain? Explain each cell’s purpose.

Plant Reproduction OHHHHH YEAHHHHHH!!!!

Pollination Transfer of pollen from anther to stigma 2 Types: Self Pollination: pollen is transferred from organs on the same plant Cross Pollination: transfer of pollen from anther of one plant to the stigma of another plant ***MOST COMMON***

Self Pollination

CROSS POLLINATION

How Does Pollen Move? 1. Animals

Mammals other than Bats!!!!

How Does Pollen Move? Wind Corn Wheat Rice Grasses

How Does Pollen Move? 3. Water Aquatic Species RARE!!! Water Starwort Water Lettuce

Fertilization Pollen lands on stigma. Pollen tube is digested through style. Pollen reaches ovary and enters ovule. Sperm and egg unite=fertilization!!!!

Results: Ovule forms seed coat/seed. Ovary forms fruit Fertilized flower produces hormones—tells plant to begin to give energy to seeds/fruits.